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A Speedment bundle that shades all dependencies into one jar. This is
useful when deploying an application on a server.
The newest version!
/*
*
* Copyright (c) 2006-2019, Speedment, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"); You may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.speedment.runtime.compute;
import com.speedment.common.function.CharUnaryOperator;
import com.speedment.common.function.ToCharFunction;
import com.speedment.runtime.compute.expression.Expression;
import com.speedment.runtime.compute.expression.ExpressionType;
import com.speedment.runtime.compute.internal.expression.CastUtil;
import com.speedment.runtime.compute.internal.expression.ComposedUtil;
import com.speedment.runtime.compute.internal.expression.MapperUtil;
import com.speedment.runtime.compute.trait.HasAsDouble;
import com.speedment.runtime.compute.trait.HasAsInt;
import com.speedment.runtime.compute.trait.HasAsLong;
import com.speedment.runtime.compute.trait.HasCase;
import com.speedment.runtime.compute.trait.HasCompare;
import com.speedment.runtime.compute.trait.HasCompose;
import com.speedment.runtime.compute.trait.HasHash;
import com.speedment.runtime.compute.trait.HasMap;
import java.util.function.Function;
/**
* Expression that given an entity returns a {@code char} value. This expression
* can be implemented using a lambda, or it can be a result of another
* operation. It has additional methods for operating on it.
*
* @param type to extract from
*
* @see ToCharFunction
*
* @author Emil Forslund
* @since 3.1.0
*/
@FunctionalInterface
public interface ToChar
extends Expression,
ToCharFunction,
HasAsDouble,
HasAsInt,
HasAsLong,
HasMap>,
HasCase>,
HasHash,
HasCompare,
HasCompose {
/**
* Returns a typed {@code ToChar} using the provided {@code lambda}.
*
* @param type to extract from
* @param lambda to convert
* @return a typed {@code ToChar} using the provided {@code lambda}
*
* @throws NullPointerException if the provided {@code lambda} is
* {@code null}
*/
static ToChar of(ToCharFunction lambda) {
if (lambda instanceof ToChar) {
return (ToChar) lambda;
} else {
return lambda::applyAsChar;
}
}
@Override
default ExpressionType expressionType() {
return ExpressionType.CHAR;
}
@Override
default ToDouble asDouble() {
return CastUtil.castCharToDouble(this);
}
@Override
default ToInt asInt() {
return CastUtil.castCharToInt(this);
}
@Override
default ToLong asLong() {
return CastUtil.castCharToLong(this);
}
@Override
default ToChar map(CharUnaryOperator operator) {
return MapperUtil.mapChar(this, operator);
}
@Override
default ToChar toUpperCase() {
return map(Character::toUpperCase);
}
@Override
default ToChar toLowerCase() {
return map(Character::toLowerCase);
}
@Override
default long hash(T object) {
return applyAsChar(object);
}
@Override
default int compare(T first, T second) {
final char f = applyAsChar(first);
final char s = applyAsChar(second);
return Character.compare(f, s);
}
@Override
default ToCharNullable compose(Function before) {
@SuppressWarnings("unchecked")
final Function casted = (Function) before;
return ComposedUtil.composeToChar(casted, this);
}
}